Originally Posted by ozsubasi
I agree that the main focus should be on one's own site, but in a competitive environment it can also be useful to keep an eye on what the competition is doing.
You need to understand what they are doing but that should not be the only focus.
Studying the marketing campaign of Pepsi and Coke of few decades ago when Pepsi was new player would help. Quoting lot of things from memory and so bear with me. Pepsi instead of competing with coke (the major player in the market) focused on its own performance month on month / quarter on quarter and we all know what Pepsi is today.